Answer: The air spaces in the spongy layer of a leaf connect with air through stomata in the epidermis of the leaf.
Step-by-step explanation:
The cells in the spongy layer of the leaf contain less chloroplast but act as storage for product of photosynthesis like sugars,amino acids and bases.
The air spaces in the spongy layer connect with air through stomata in the epidermis of the leaf. The air spaces in spongy layer allow diffusion of carbondioxide and oxygen and stomata which is a small pores in the epidermis allow carbondioxide and oxygen to enter and leave the leaf.